To implement a standard RS232 interface over a IRDA link is simple. Although this means that you will drop all tha nasty SW layers associated with IRDA, but if you don't care,... Use the following setup: PIC <---> TOIM3232 <--->TFDS3000 Both circuits from Temic. Haavard. ----------- At 23:29 07.05.98 PDT, you wrote: > IrDA has to be implemented in a Stack (See OSI) IrLAP(Link Access protocol > handles most of the difficulties)- THen there is IrLMP which handles the > connections. It can be very thin, but the trickiest part is that IrDA > pulses are 3/16th of the regular USART signals. I can help you some. > >It's always seemed to me (looking at it casually from far away) that it >ought to be trivial to convert a software bit-banging serial routine to the >shorter pulses of IRDA. Yes? No? I guess it would take a 16/3 faster >processor or 16/3 more cycles, maybe (worst case?) > >BillW > >